Alpha-beta surface pollution measuring support

Abstract

The utility model provides an alpha-beta surface contamination measuring support, which relates to the technical field of radioactive measuring equipment and comprises an outer shell, a movable supporting plate is arranged in the outer shell, and sliding grooves distributed at equal intervals are formed in the outer shell. When the front face of the support is used, the lower end face of the sliding block is attached to the lower end face of the sliding groove, so that the bottom face of the movable supporting plate and the lower end face of the outer shell are located at the same height, and when the measuring instrument is placed on the upper end face of the movable supporting plate, the distance between the detection window and the plane to be measured is five millimeters. The sliding block is attached to the upper end face of the sliding groove, so that the sliding block can support the upper end face of the movable supporting plate to be five millimeters higher than the upper end face of the outer shell, and the height distance between a detection window of the measuring instrument and a to-be-measured plane can be kept at one centimeter. Therefore, the effect of simultaneously measuring alpha surface pollution and beta surface pollution can be realized by using one bracket.

Description

Technical Field

[0001] The utility model relates to a measuring bracket, in particular to an αβ surface contamination measuring bracket, belonging to the technical field of radioactive measuring equipment. Background Art

[0002] The α, β surface contamination detector is a device used to detect the degree of α, β radioactive contamination on work surfaces, floors, walls, clothing, food and other surfaces in radioactive workplaces and laboratories.

[0003] The surface contamination measuring instrument bracket disclosed in the Chinese patent application publication specification CN211669373U includes a shell, the shell includes a bottom plate and side walls, the side walls extend upward from the outer circumference of the bottom plate to form a cavity for accommodating the surface contamination measuring instrument; a first through hole is opened on the bottom plate; the first through hole is adapted to the detection window of the surface contamination measuring instrument; and an inner cavity for accommodating lead filling is formed inside the shell. Since the surface contamination measuring instrument bracket of the utility model uses a lead-filled shell, it can effectively eliminate the influence of the surrounding areas of the surface of the object to be measured on the detection and the influence of high-dose gamma rays around the object to be measured on the detection, thereby reducing detection errors and improving the accuracy of the detection results of the surface contamination measuring instrument. Therefore, after the measurement, there is no need to correct the detection results, thereby improving the detection efficiency.

[0004] When the surface contamination measuring instrument measures the α and β surfaces, the distances between the detection window and the plane to be measured are five millimeters and one centimeter respectively. The above patent adjusts the distance between the detection window and the plane to be measured by adding a pad, so that the operator needs to carry the pad with him, which is more troublesome. If there is a gap between the pad and the bottom plate during installation, the error of the surface detection data of the measuring instrument will increase. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The purpose of the utility model is to provide an αβ surface contamination measurement bracket in order to solve the above problems, so as to solve the problem that the pad used to adjust the bracket to the measuring instrument in the prior art is troublesome to carry and install, and is easy to increase the error of the measurement data.

[0007] (II) Technical solution

[0008] The utility model is implemented through the following technical scheme: an αβ surface contamination measuring bracket, comprising an outer shell, a movable support plate is arranged inside the outer shell, sliding grooves distributed at equal distances are opened inside the outer shell, the outer surface of the movable support plate is fixedly connected with sliding blocks distributed at equal distances, each of the sliding blocks is slidably connected to the corresponding sliding groove, a through hole is opened inside the movable support plate, a baffle is slidably connected inside the movable support plate, a card slot is opened inside the movable support plate, a card block is fixedly connected to the outer surface of the baffle, and the outer surface of the card block is carded with the card slot.

[0009] Preferably, the thickness of the movable support plate is five millimeters, and the thickness of the sliding block is two and a half millimeters. When used on the front side of the bracket, the lower end surface of the movable support plate and the lower end surface of the outer shell are at the same height. When the measuring instrument is placed on the upper end surface of the movable support plate, the distance between the detection window and the plane to be measured is equal to the thickness of the movable support plate of five millimeters, which can be used to measure the α surface.

[0010] Preferably, the distance between the lower end face of the sliding groove and the lower end face of the outer shell is 2.5 mm, the distance between the upper end face of the sliding groove and the upper end face of the outer shell is 5 mm, and the upper end face of the sliding block is at the same height as the upper end face of the movable support plate. Therefore, when the sliding block contacts the lower end face of the sliding groove, the lower end face of the movable support plate can be at the same height as the lower end face of the outer shell. When the bracket is used with the reverse side, the upper end face of the sliding block contacts the upper end face of the sliding groove, so that the sliding block can support the upper end face of the movable support plate to be five mm higher than the plane to be measured. Combined with the thickness of the movable support plate of five mm, the height distance between the detection window of the measuring instrument and the plane to be measured is maintained at one centimeter, which can be used to measure the β surface.

[0011] Preferably, the interior of the outer shell is provided with equidistantly distributed circular grooves, each of which is provided with a fixing block, and the outer surface of each fixing block is provided with an anti-slip pad, so that the measuring instrument can be fixed inside the outer shell by squeezing the fixing block.

[0012] Preferably, the internal thread connection of the outer shell is connected with threaded rods distributed at equal distances, each of the threaded rods is rotatably connected to the corresponding fixed block, and the outer surface of each threaded rod is fixedly connected with a hexagonal twist block. The hexagonal twist block is provided to facilitate the user to rotate the threaded rod, and the rotation of the threaded rod can push the fixed block to move.

[0013] The utility model provides an αβ surface contamination measurement bracket, which has the following beneficial effects:

[0014] 1. The αβ surface contamination measurement bracket is provided with a movable support plate, a sliding block and other components. When the bracket is used from the front, the lower end surface of the sliding block fits with the lower end surface of the sliding groove, so that the bottom surface of the movable support plate and the lower end surface of the outer shell are at the same height. When the measuring instrument is placed on the upper end surface of the movable support plate, the distance between the detection window and the plane to be measured is five millimeters. When the bracket is used from the back, the upper end surface of the sliding block fits with the upper end surface of the sliding groove, so that the sliding block can support the upper end surface of the movable support plate to be five millimeters higher than the plane to be measured. In addition, the thickness of the movable support plate itself is five millimeters, so that the height distance between the detection window of the measuring instrument and the plane to be measured is maintained at one centimeter, thereby achieving the effect of using one bracket to meet both α surface contamination measurement and β surface contamination measurement.

[0015] 2. The αβ surface contamination measuring bracket is provided with components such as baffles. After the detection of the measuring instrument is completed, the baffle can be moved by moving the card block to be connected to the inside of the card slot, and the through hole can be closed by the movement of the baffle, thereby protecting the detection window of the surface contamination measuring instrument from being contaminated by radioactive environments, which is beneficial to preventing it from being hit by heavy objects or scratched by sharp objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the mobile support plate of the utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the outer shell of the utility model;

[0019] Figure 4 This is a schematic diagram of the fixed block structure of the utility model.

[0020] Description of Reference Numerals

[0021] 1. Outer shell; 2. Movable support plate; 3. Sliding groove; 4. Sliding block; 5. Through hole; 6. Baffle; 7. Slot; 8. Block; 9. Placement circular groove; 10. Fixed block; 11. Anti-slip pad; 12. Threaded rod; 13. Hexagonal twist block. DETAILED DESCRIPTION

[0022] The embodiment of the utility model provides an αβ surface contamination measurement bracket.

[0023] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4, including an outer shell 1, a movable support plate 2 is arranged inside the outer shell 1, sliding grooves 3 distributed at equal distances are opened inside the outer shell 1, and the outer surface of the movable support plate 2 is fixedly connected with sliding blocks 4 distributed at equal distances. The position of the movable support plate 2 is moved by sliding the sliding blocks 4 in the sliding grooves 3, so that the device can be used from both sides, and the upper end surface and the lower end surface of the sliding groove 3 can limit the movement of the sliding block 4.

[0024] Each sliding block 4 is slidably connected to the corresponding sliding groove 3. A through hole 5 is opened inside the movable support plate 2. The through hole 5 is adapted to the detection window of the surface contamination measuring instrument, so that the detection window of the surface contamination measuring instrument can detect the plane to be measured through the through hole 5.

[0025] The movable support plate 2 is internally slidably connected with a baffle 6, a slot 7 is provided inside the movable support plate 2, an outer surface of the baffle 6 is fixedly connected with a clamping block 8, an outer surface of the clamping block 8 is clamped with the slot 7, and the movable clamping block 8 is clamped inside the slot 7, so that the baffle 6 can close the through hole 5, which is beneficial to protect the detection window of the surface contamination measuring instrument from being contaminated by radioactive environment places, and is beneficial to prevent it from being hit by heavy objects or scratched by sharp objects.

[0026] Please refer to Figure 1 Figure 2 and Figure 3 The thickness of the movable support plate 2 is five millimeters, and the thickness of the sliding block 4 is two and a half millimeters. When used on the front side of the bracket, the lower end surface of the movable support plate 2 is at the same height as the lower end surface of the outer shell 1. When the measuring instrument is placed on the upper end surface of the movable support plate 2, the distance between the detection window and the plane to be measured is equal to the thickness of the movable support plate 2, which is five millimeters, and can be used to measure the α surface.

[0027] Please refer to Figure 1 and Figure 3 The distance between the lower end face of the sliding groove 3 and the lower end face of the outer shell 1 is 2.5 mm, the distance between the upper end face of the sliding groove 3 and the upper end face of the outer shell 1 is 5 mm, and the upper end face of the sliding block 4 is at the same height as the upper end face of the movable support plate 2. Therefore, when the sliding block 4 contacts the lower end face of the sliding groove 3, the lower end face of the movable support plate 2 can be at the same height as the lower end face of the outer shell 1. When the bracket is used with the reverse side, the upper end face of the sliding block 4 contacts the upper end face of the sliding groove 3, so that the sliding block 4 can support the upper end face of the movable support plate 2 to be five millimeters higher than the plane to be measured. Combined with the thickness of the movable support plate 2 of five millimeters, the height distance between the detection window of the measuring instrument and the plane to be measured is maintained at one centimeter, which can be used to measure the β surface.

[0028] Please refer to Figure 3 and Figure 4The outer shell 1 is provided with equidistantly distributed circular grooves 9, each of which is provided with a fixing block 10, and the outer surface of each fixing block 10 is provided with an anti-slip pad 11. The measuring instrument is squeezed by the fixing block 10 so that the measuring instrument can be fixed inside the outer shell 1.

[0029] Please refer to Figure 1 and Figure 4 The inner thread of the outer shell 1 is connected with threaded rods 12 distributed at equal distances, each threaded rod 12 is rotatably connected to the corresponding fixed block 10, and the outer surface of each threaded rod 12 is fixedly connected with a hexagonal torsion block 13. The hexagonal torsion block 13 is provided to facilitate the user to rotate the threaded rod 12, and the rotation of the threaded rod 12 can push the fixed block 10 to move.

[0030] The utility model is in use: when the front side of the bracket is used, the lower end face of the sliding block 4 is fitted with the lower end face of the sliding groove 3, so that the bottom face of the movable support plate 2 and the lower end face of the outer shell 1 are at the same height, and when the measuring instrument is placed on the upper end face of the movable support plate 2, the distance between the detection window and the plane to be measured is equal to the thickness of the movable support plate 2, which is five millimeters, and can be used for measuring the α surface. When the device needs to detect the β surface, the reverse side of the bracket is used, so that the upper end face of the sliding block 4 is fitted with the upper end face of the sliding groove 3, so that the sliding block 4 can support the upper end face of the movable support plate 2 to be five millimeters higher than the plane to be measured, plus the thickness of the movable support plate 2 itself is five millimeters, so that the detection window of the measuring instrument and the plane to be measured are equal. The surface height distance is maintained at one centimeter, which can be used to measure the β surface, thereby achieving the effect of using one bracket to meet the requirements of both α surface contamination measurement and β surface contamination measurement. After the measuring instrument is placed on the end face of the movable support plate 2, the threaded rod 12 pushes the fixed block 10 to move by rotating the hexagonal twist block 13, and the measuring instrument is squeezed by the fixed block 10 to complete the fixation between the bracket and the measuring instrument, making it convenient for users to move the bracket and the measuring instrument together. By moving the clamping block 8 to be clamped in the clamping slot 7, the baffle 6 can close the through hole 5, which is beneficial to protect the detection window of the surface contamination measuring instrument from being contaminated by radioactive environments and to prevent it from being hit by heavy objects or scratched by sharp objects.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An αβ surface contamination measurement bracket, comprising an outer shell (1), characterized in that: The outer shell (1) is provided with a movable support plate (2) inside, the outer shell (1) is provided with sliding grooves (3) distributed at equal distances inside, the outer surface of the movable support plate (2) is fixedly connected with sliding blocks (4) distributed at equal distances, each of the sliding blocks (4) is slidably connected with the corresponding sliding groove (3), the movable support plate (2) is provided with a through hole (5), the movable support plate (2) is slidably connected with a baffle plate (6) inside, the movable support plate (2) is provided with a clamping groove (7), the outer surface of the baffle plate (6) is fixedly connected with a clamping block (8), and the outer surface of the clamping block (8) is clamped with the clamping groove (7).

2. The αβ surface contamination measurement bracket according to claim 1, characterized in that: The thickness of the movable support plate (2) is five millimeters, and the thickness of the sliding block (4) is two and a half millimeters.

3. The αβ surface contamination measurement bracket according to claim 1, characterized in that: The distance between the lower end surface of the sliding groove (3) and the lower end surface of the outer shell (1) is 2.5 millimeters, and the distance between the upper end surface of the sliding groove (3) and the upper end surface of the outer shell (1) is 5 millimeters.

4. The αβ surface contamination measurement bracket according to claim 1, characterized in that: The outer shell (1) is provided with placement circular grooves (9) distributed at equal distances, each placement circular groove (9) is provided with a fixing block (10), and the outer surface of each fixing block (10) is provided with an anti-slip pad (11).

5. The αβ surface contamination measurement bracket according to claim 4, characterized in that: The outer shell (1) is internally threadedly connected to threaded rods (12) distributed at equal distances, each of the threaded rods (12) is rotatably connected to a corresponding fixed block (10), and the outer surface of each of the threaded rods (12) is fixedly connected to a hexagonal torsion block (13).

Images